execute at @a[tag=crystal] run playsound minecraft:entity.ender_dragon.ambient block @a[tag=crysta]
tellraw @a [{"text": "[","color": "aqua"},{"text": "Technetium","color": "gold"},{"text": "]","color": "aqua"},{"selector":"@a[tag=crystal]"},{"text":" 试图拿取末影水晶","color":"red","bold":true}]
clear @a[tag=!whitelist] end_crystal